Are you looking for a fitness tracker that can keep up with your swimming? A good waterproof fitness tracker is perfect for counting strokes, tracking time, and keeping an eye on your heart rate while you swim.
Like in sports, where special gear helps athletes perform better, these trackers are made to help swimmers improve.
Waterproof fitness trackers come with different features. Some can handle being underwater at deep levels like the Garmin Vivoactive 4 and Polar Grit X. Others have screens easy to see outside, like the Amazfit Band 5.
Kids can use the Fitbit Ace 2 which is just right for their size. For those who need a long-lasting battery, there’s the Samsung Gear Fit2 Pro Smartwatch. And if you’re into diving or fast water sports, check out the Apple Watch Ultra.
When picking a waterproof fitness tracker, think about how much water it can resist and what kinds of swimming it knows best. Also look for extra features that make training better.
These details matter because they help you choose a device that fits your needs in the pool.
This article will guide you through some of the best choices on the market so you can find one that matches how you swim and train. Ready to make a splash with tech by your side? Let’s dive into finding your ideal swimming companion!
What to Consider When Choosing a Waterproof Fitness Tracker for Swimming
Selecting the ideal waterproof fitness tracker for your aquatic exercises demands attention to specific features that maximize performance and reliability in water environments. The choice hinges on identifying a device equipped to navigate the distinct challenges of swimming, offering accurate data tracking while resisting the rigors of frequent submersion.
Water Resistance Rating
Water resistance rating is key for a fitness tracker you’ll use in the pool or ocean. Think about how deep you can go with your device. A higher number means it’s safe at bigger depths.
For example, the Polar Grit X has a WR100 rating, meaning you can take it down to 328 feet. This makes it great not just for swimming but also for diving and other water sports.
Always check the depth rating before buying a waterproof fitness tracker. Some are only good for splashes or short swims. Others, like dive watches, handle much deeper water and high-speed activities well.
The right one will keep working no matter how wet your adventures get!
Stroke Recognition
Knowing how you move in the water helps a lot. A good waterproof fitness tracker can tell what kind of stroke you are doing. It can see if you swim freestyle, backstroke, or butterfly.
This is great because it gives you details about your swim style and speed. Say you’re working to get better at swimming. These trackers will show how much your swim has changed over time.
Some trackers like the Garmin Swim 2 even know when you turn around in the pool to start a new lap. They help swimmers understand their workouts better by giving them more information about each stroke they take in the water.
Training Specific Features
Fitness trackers made for swimming can do some cool things to help swimmers get better. They look at how you swim, like the kind of stroke you use and if your style changes during your workout.
These gadgets keep track of the number of laps and how fast each one is. A good tracker will even show which part of your stroke needs work.
Some watches have special tools to train smarter. They can set up a workout plan or buzz on your wrist when it’s time to push harder or slow down. Garmin watches are really good for this because they give lots of swim details and have settings just for pool workouts.
This means swimmers can see their progress and know exactly what to improve in their next swim.
Heart Rate Monitoring
Checking your heart rate while swimming is really useful. It helps you see how hard your heart works during exercise. Good swim watches and trackers can measure your heart beat even when you’re in the water.
This feature lets swimmers keep an eye on their effort levels and make sure they are training safely.
Many waterproof fitness trackers have special ways to watch your heartbeat while swimming. They use lights and sensors right on your wrist so you don’t need a chest strap. With these devices, swimmers can track how fast or slow their hearts beat over time.
This info can help improve workouts and show progress in getting fit.
Battery Life
Battery life is key for a fitness tracker, especially when swimming. You want your device to last through long workout sessions or even multiple swims. The Fitbit Charge 4 goes up to 7 days without needing a charge, so you can focus on your strokes instead of the battery level.
Samsung Gear Fit2 Pro has a powerful rechargeable battery that keeps you tracking for days straight.
For extra long life look at the Amazfit Band 5; it stays alive for up to 15 days! This means less time plugging in and more time moving. Apple Watch Ultra stands out with an impressive 36 hours per charge – great for those who push their limits in pool and open water alike.
Remembering to charge can be tough, but these trackers make it easy by keeping power longer and helping you stay on top of your fitness goals.
Top Waterproof Fitness Tracker: Garmin Swim 2
Crafted for the avid swimmer, the Garmin Swim 2 emerges as a standout waterproof fitness tracker tailored to provide precise aquatic metrics. This device not only tracks your swims but enhances them with its advanced features designed specifically for water-based workouts.
Features & Description (Garmin Swim 2)
The Garmin Swim 2 is a top choice for swimmers who want to keep track of their time in the water. It’s made just for swimming, whether you’re in a pool or out in open water. This watch knows your swim style and counts your strokes.
It even tracks how far and fast you go.
You won’t have to worry about losing charge while you swim; the battery life is strong. The heart rate monitor is very accurate, even underwater. You can see your heart data as you swim which helps understand your workout better.
Plus, with its GPS feature, outdoor swimmers can find their way and measure distances clearly when they’re swimming in lakes or oceans.
Garmin Swim 2 offers detailed data on every swim session that helps improve your fitness levels. Swimmers get readouts right on their wrist after each lap so they know exactly how they are doing instantly—all without pressing any buttons!
Pros & Cons (Garmin Swim 2)
The Garmin Swim 2 stands as a robust option tailored for the aquatic athlete, providing a spectrum of features designed for performance tracking and tailored training within the watery realm. This device is engineered to assist swimmers in enhancing their skills and monitoring their progress.
| Pros of Garmin Swim 2 | Cons of Garmin Swim 2 |
|---|---|
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Garmin Swim 2’s sophisticated tracking allows swimmers to delve into detailed analytics for improvement. However, users should weigh its cost and battery life against their specific needs and preferences before investing.
Best Automatic Swim Tracking: Fitbit Charge 4
For those seeking effortless recording of their aquatic exercises, the Fitbit Charge 4 stands out with its cutting-edge automatic swim tracking ability. This device intelligently distinguishes your swimming activities, ensuring that each stroke and lap is captured for comprehensive workout analysis.
Features & Description (Fitbit Charge 4)
The Fitbit Charge 4 lets you track your swimming like a pro. It’s water-resistant up to 50 meters, so it can handle the deep end with ease. With this fitness tracker on your wrist, you’ll know how many laps you’ve done, the distance you swam, and even the calories you’ve burned.
The built-in GPS means you can see your swim route if you’re in open water. Plus, it knows when you’re swimming automatically – no need to tell it when to start timing.
This smartwatch also cares about how stressed or relaxed you are by checking your heart rate variability and stress levels. And for those with health concerns, there’s more good news: it has an ECG (electrocardiogram) and an EDA (electrodermal activity) sensor to look out for atrial fibrillation and measure stress responses too.
You can wear the Fitbit Charge 4 all day because it fits well on any wrist size and shines bright enough under sunny skies or pool lights alike!
Pros & Cons (Fitbit Charge 4)
Moving from the detailed features and description of the Fitbit Charge 4, let’s delve into the advantages and disadvantages of this popular fitness tracker. The Fitbit Charge 4 is well-regarded for its automatic swim tracking capabilities, and with a water resistance rating of 5 ATM, it is designed to withstand pressures equivalent to a depth of 50 meters. Here are the pros and cons laid out in an easy-to-digest format:
| Pros of Fitbit Charge 4 | Cons of Fitbit Charge 4 |
|---|---|
| Offers automatic swim tracking, capturing your pool workouts without manual input. | Does not provide advanced swimming metrics compared to specialized swim watches. |
| Equipped with a 5 ATM water resistance rating, suitable for swimming activities. | Battery life can be short, especially with GPS and heart rate monitor in use. |
| Includes built-in GPS for tracking outdoor swims and other activities. | Screen visibility can be limited under bright sunlight, affecting outdoor readability. |
| Monitors heart rate, offering insights into workout intensity and cardiopulmonary health. | Some users may find the band uncomfortable for long periods, particularly during swims. |
| Compatible with the Fitbit app, enabling data sync and detailed performance analytics. | Lacks a dedicated button for starting swim workouts, might require navigating through menus. |
| Provides sleep tracking and smart notifications, enhancing its daily usability. | Touchscreen controls can be less responsive when wet, which may be inconvenient during swims. |
As much as the Fitbit Charge 4 presents an impressive suite of features for aquatic fitness enthusiasts, users must weigh both its strengths and limitations to determine if it aligns with their specific needs and preferences.
Best for Outdoor Screen Visibility: Amazfit Band 5 Activity Fitness Tracker
The Amazfit Band 5 Activity Fitness Tracker stands out for offering exceptional screen clarity under the bright glare of the sun, an essential feature for swimmers who often train outdoors.
Its superior display technology ensures that your fitness metrics remain visible during outdoor workouts, allowing you to track your progress without missing a stroke.
Features & Description (Amazfit Band 5 Activity Fitness Tracker)
Amazfit Band 5 Activity Fitness Tracker shines with a versatile design that’s perfect for both workouts and everyday wear. It tracks everything from heart rate to blood oxygen levels, making sure you have all the vital health metrics at your fingertips.
With its 5 ATM rating, this tracker is ready to join you in the pool or handle a surprise rain during your run. You can choose from 11 different workout modes to suit whatever activity you’re doing.
This gadget goes beyond counting steps; it also measures how well your body handles stress and keeps an eye on your heart rate variability. Its long battery life means you can spend up to two weeks without worrying about charging.
Plus, the built-in Blood Oxygen Saturation Monitor provides valuable insights into how efficiently your body uses oxygen – especially useful when pushing yourself hard during exercise or tracking sleep quality at night.
Now let’s explore its pros and cons for a more complete picture of what it offers.
Pros & Cons (Amazfit Band 5 Activity Fitness Tracker)
Evaluating the Amazfit Band 5 Activity Fitness Tracker reveals it’s a formidable option for swimmers. This fitness tracker balances functionality and endurance, providing features tailored to an aquatic environment.
| Pros | Cons |
|---|---|
| Robust 5 ATM water resistance suitable for swimming | Limited stroke type recognition compared to specialized swim watches |
| Extended 15-day battery life for less frequent charging | Screen visibility may be lacking under direct sunlight |
| Support for multiple exercise modes including pool swimming | Does not offer GPS tracking, limiting open water functionality |
| Heart rate monitoring for in-depth fitness tracking | The band’s design may not appeal to all users |
| Includes a Blood Oxygen Saturation Monitor for health metrics | May require frequent connection to a smartphone for full feature access |
Next up, we’ll plunge into the Polar Grit X, designed with the endurance athlete in mind.
Best for Triathletes: Polar Grit X
The Polar Grit X stands out for its robust design and specialized features, catering specifically to the demands of triathletes. Its precision in tracking diverse activities makes it a powerful tool for athletes committed to multidisciplinary training.
Features & Description (Polar Grit X)
Polar Grit X is made tough for triathletes and outdoor athletes. It’s waterproof up to 328 feet, so you can swim in pools or open water without worry. This fitness tracker knows your strokes when you’re swimming and gives you a special profile for each type.
You get more than 130 sports profiles to choose from which helps keep your training fresh.
This device also tracks hills with a feature called Hill Splitter. That makes it easy to see how you do on the ups and downs of your routes. And if you’re into numbers, the SWOLF score measures your swimming efficiency.
With its long battery life of four days, or 40 hours when using GPS, Polar Grit X keeps up with your adventures without needing constant charging.
Pros & Cons (Polar Grit X)
Having delved into the features and description of the Polar Grit X, let’s examine the advantages and drawbacks of this robust fitness tracker for swimmers and triathletes.
| Pros of Polar Grit X | Cons of Polar Grit X |
|---|---|
| Waterproof to 328 feet with a WR100 rating, ensuring suitability for various aquatic activities. | May be on the higher end of the price spectrum for fitness trackers. |
| Long battery life of up to 40 hours supports extended training sessions and competitions. | Some users may find the wealth of features overwhelming at first. |
| Over 130 sports profiles with specialized swimming features and SWOLF scoring for detailed performance tracking. | Navigation features like real-time route guidance from Komoot require syncing with a smartphone. |
| Rugged build and outdoor-specific features cater to outdoor athletes and triathletes with varying training needs. | A bright MIP display is energy-efficient but may not be as vibrant as other color displays in low-light conditions. |
| Lightweight design and comfort make it suitable for long workouts and all-day wear. | Companion app and data syncing might have a learning curve for some users. |
The Polar Grit X stands out as a reliable companion for swimmers seeking to enhance their performance through detailed tracking and robust sport-specific features. Its durability and comfort make it a favorite among triathletes. However, the cost and complexity might not appeal to everyone.
Best for Kids: Fitbit Ace 2
Designed specifically with younger swimmers in mind, the Fitbit Ace 2 stands out as an ideal option for children eager to dive into fitness tracking. It offers a durable, water-resistant design and engaging activity challenges to encourage kids to stay active both in and out of the pool.
Features & Description (Fitbit Ace 2)
The Fitbit Ace 2 is made to handle everything kids can throw at it. It’s water-resistant up to 164 feet, so they can swim with no worries. This fitness tracker has a fun look that kids love, with bright colors and a sturdy design.
It helps track steps and active minutes to keep children moving in the right direction toward health and activity.
Not only is the Ace 2 cool for kids, but parents too will appreciate its features. Parents can set up family accounts to stay on top of their child’s progress. They’ll find that this tracker costs $99.50 on Amazon or slightly less at Walmart for $79.95.
Moving forward from trackers designed for young swimmers, let’s explore options geared towards older audiences who need something robust for more intense water activities.
Pros & Cons (Fitbit Ace 2)
Fitbit Ace 2 stands out as an affordable and kid-friendly option for young swimmers seeking to track their pool activities. Now, let’s delve into the advantages and disadvantages of this fitness tracker to aide your decision-making process.
| Pros | Cons |
|---|---|
| Water-resistant up to 164 feet, suitable for swimming | Lacks advanced swim metrics for professional training |
| Kid-friendly design encourages physical activity | More basic functionalities compared to adult fitness trackers |
| Affordably priced, making it accessible for families | Screen size may be too small for some users |
| Provides essential health metrics like 24/7 heart-rate tracking | Heart-rate monitoring may not be as accurate during intense activity |
| Estimates daily calorie burn totals | May not sync seamlessly with all third-party apps |
| User-friendly interface ideal for children’s use | Battery life shorter than some other models |
After considering the Fitbit Ace 2 for younger swimmers, it’s important to note that several options cater to different needs across age groups and skill levels. Next, we’ll discuss the Samsung Gear Fit2 Pro Smartwatch, renowned for its impressive battery life.
Best Battery Life: Samsung Gear Fit2 Pro Smartwatch
The Samsung Gear Fit2 Pro Smartwatch emerges as a frontrunner for fitness enthusiasts keen on maximizing their active time with minimal charging interruptions, boasting an impressively long-lasting battery life.
Diving into its capabilities reveals a device that not only keeps pace with rigorous swim sessions but also serves as an unwavering companion throughout extended workouts.
Features & Description (Samsung Gear Fit2 Pro Smartwatch)
Gear up with the Samsung Gear Fit2 Pro Smartwatch! It’s made for all your swims and more. This smartwatch can handle water easily, thanks to its 5 ATM rating. You’ll find it perfect for tracking your swimming sessions and other fun in the water.
With built-in GPS, you can see where you’ve been as you run, walk or swim.
The smartwatch isn’t just tough; it looks good too. It’s got a metal frame and sapphire glass that keep it safe when you’re on the move. The heart rate monitor keeps an eye on your beats per minute, while sleep tracking helps you know how well you rest at night.
Plus, no need to worry about battery life—this watch is designed to last long enough to track all your activities without needing a charge right away.
Pros & Cons (Samsung Gear Fit2 Pro Smartwatch)
The Samsung Gear Fit2 Pro Smartwatch stands as a compelling option for swimmers and fitness enthusiasts alike, offering a robust set of features tailored to enhance your workout routine. Below is a detailed rundown of its advantages and shortcomings.
| Pros | Cons |
|---|---|
| Excellent battery life, with up to seven days on a single charge. | May be bulkier on the wrist compared to other slimmer models. |
| Water-resistant rating of 5 ATM, suitable for swimming activities. | Interface might be complex for users seeking more straightforward functionality. |
| Advanced fitness tracking metrics, including heart rate and stress monitoring. | Some users report occasional inaccuracies with the heart rate sensor. |
| Offers a wide variety of workout options and tracking capabilities. | Touchscreen responsiveness may diminish under water. |
| Seamlessly syncs with both Android and iOS devices for data management. | Charging mechanism can be finicky, necessitating precise placement. |
| Incorporates smart notifications, keeping you connected even during workouts. | Display visibility can be compromised in extremely bright conditions. |
| Capable of storing music directly on the device for phone-free listening. | Limited third-party app support compared to competitors. |
The Samsung Gear Fit2 Pro Smartwatch is designed to support individuals on their fitness journey, whether they are just starting out or are seasoned athletes looking to refine their performance.
Best for Diving and High-Velocity Water Sports: Apple Watch Ultra
For thrill-seekers and aquatic athletes, the Apple Watch Ultra stands out as a top-tier option designed to endure the rigorous demands of diving and high-velocity water sports. Its robust build and advanced features cater specifically to those who push boundaries both above and below the water’s surface.
Features & Description (Apple Watch Ultra)
The Apple Watch Ultra stands out with its WR100 rating, meaning it can handle water up to 328 feet deep. This watch is made tough for all kinds of sports and adventures. It has a big screen that’s easy to see outside, and the battery lasts a long time, so you don’t have to charge it too often.
There’s even an Action button you can set up how you like, and if you get into trouble, there’s an emergency siren.
You won’t miss calls or messages in the water because this watch connects without your phone. The speaker is loud and clear, even in noisy places. For finding your way around, the Apple Watch Ultra uses two GPS types together to be more accurate.
Plus, working the buttons is simple with gloves on – handy when it’s cold or wet!
Pros & Cons (Apple Watch Ultra)
The Apple Watch Ultra stands out as a premium option for those seeking a high-performance waterproof fitness tracker that can handle an array of water activities, including diving and high-velocity water sports.
| Pros | Cons |
|---|---|
| WR100 water resistance rating, suitable for diving up to 328 feet deep | Premium pricing may be prohibitive for some users |
| Advanced health and fitness features, including heart rate monitoring | Battery life may not match some dedicated fitness trackers with less functionality |
| Robust build quality designed for extreme sports and conditions | Heavier and bulkier design might not appeal to all swimmers |
| Multiple sensors for enhanced tracking of various exercise modes | Complex functionality can have a learning curve for new users |
| Highly visible display in various lighting conditions | Not as focused on swimming metrics as some swim-specific trackers |
Choosing the right fitness tracker can elevate your swimming routine. Let’s explore how top swimmers utilize these devices to gain a competitive edge.
How Top Swimmers Utilize Fitness Trackers to Enhance Training
Elite swimmers harness the advanced capabilities of fitness trackers to elevate their training, leveraging data-driven insights for performance optimization. These devices go beyond basic lap counting, providing detailed analytics on everything from stroke efficiency to energy expenditure, effectively transforming wearables into indispensable coaching tools.
Distance Tracking
Knowing how far you swim is key to getting better. Fitness trackers like the Fitbit Charge 5 and the Garmin Vivoactive 4 are great tools for this. They show your swimming distance clearly.
This helps you set goals and see your progress over time. Using a tracker, you can push yourself more each day.
Now, let’s talk about stroke analysis and why it matters in swimming.
Stroke Analysis
Fitness trackers are great at figuring out your swim strokes. They check how you move in the water and tell you if you can do better. This helps you swim smoother and faster. Swimmers like Michael Phelps work hard to make their technique perfect, and these tools offer a way for everyday swimmers to improve too.
A good tracker will spot things like stroke rate, which is how often your arms go around when swimming. It will also see if each arm pulls as strong as the other. You get tips on how to keep getting better from what it finds out about your swimming style.
Whether doing laps in a pool or training for a race, this tool gets your skills up there with the best.
Cardiac Monitoring
Heart rate monitoring is a big deal in swimming. Watches and fitness trackers can check your heartbeats during workouts. This helps you know how hard you’re working. Swimmers use this info to make their training better.
Top swimmers look at their heart data to see progress over time. They can tell if they need to push harder or slow down. Keeping an eye on your heartbeat while swimming could help keep you safe too.
It makes sure you’re not pushing your heart too much.
These devices are smart and give lots of numbers about your swims, like how fast or well you swim different strokes or if you need more rest between laps. Using these tools right can really boost a swimmer’s performance in the pool!
Technique Refinement
Swimmers use fitness trackers to work on their technique. These gadgets show how you move in the water. They help fix small errors that make a big difference. Even top swimmers like Michael Phelps and Katie Ledecky check their data to swim better.
Getting your moves right can be tough. With these smart devices, you get quick feedback right on your wristwatch or via an app on your smartphone. You can see if you need to change something soon after you swim.
This helps swimmers of all levels improve fast!
Time Metrics
Keeping track of time while swimming matters a lot. Fitness trackers help you see how fast you are going with each swim. They can show your speed for one lap or the whole swim workout.
Good fitness trackers also tell you if you’re getting faster over weeks or months.
Advanced devices like some Apple Watches and Garmins use these time numbers to give even more details about your swims. They look at things like rest times and how they change as you get tired.
This helps swimmers know when to push harder or take it easy during training. Knowing this info can lead to better performance in the water over time.
Common FAQs
Delve into our Common FAQs section to uncover insights addressing popular queries about the distinctions between fitness watches and trackers, as well as comparisons of brand performance in aquatic environments.
This segment provides essential information for potential buyers considering a waterproof device to elevate their swimming experience.
Difference between a fitness watch and a fitness tracker
A fitness watch is like a mini computer for your wrist. It not only tracks how much you move but also lets you get text messages, see your calendar, and sometimes even make calls. The screens are usually big so that you can read them easily.
Fitness trackers, on the other hand, keep it simple. They focus more on counting your steps and checking how well you sleep or how fast your heart beats. Their screens might be smaller since they’re all about keeping an eye on your health.
Think of fitness watches as smartwatches with extra tools for working out. Meanwhile, activity trackers are like personal coaches focused just on your moves and wellness goals. Both Fitbit and Garmin have great options that love water just as much as swimmers do! It’s key to look at their water resistance if you want to wear one in the pool.
Is Fitbit or Garmin better for swimming?
Fitbit trackers can handle water like it’s no big deal. They’re safe to take into the pool, letting you track your swims up to 164 feet deep. You can count on a Fitbit for basic swim tracking.
But if you’re all about swimming, Garmin might be more up your alley. Garmin watches really shine when it comes to swimming. They have special features made just for the pool or open water that help serious swimmers keep an eye on their strokes and laps.
Garmins are awesome for people who dive deep into swim training. These watches know what swimmers need because they come with things like stroke recognition and detailed swim metrics.
That way, you get a good look at how well you’re doing in the water and where to get better.
Can you swim with a waterproof smartwatch?
You can swim with a waterproof smartwatch. These watches are made to handle water and keep working while you swim. They have special seals that stop water from getting inside. The Apple Watch SE, for example, is built to be swim-proof.
This means it’s safe in the pool or the ocean. You should look for how deep and how long a watch can stay underwater before buying one.
Some smartwatches even track your swimming. They measure things like the number of laps, your swim style, and how fast you move through the water. With these details, you improve your swimming skills.
The Huawei Band 3E is another device designed for the water; it survives when you dive in for a swim session. Remember to check if your waterproof watch has what it needs to help with your swims before using it in the water.
Conclusion
Swimmers, ready to make a splash with your fitness goals? The right waterproof tracker awaits! With options like the Garmin Swim 2 and Fitbit Charge 4, you’ll find one that fits your style.
They’re great for tracking strokes and dives, even under deep water. Think about how a good swim watch could change your workouts. Want to push yourself further? Choose a device that feels like it’s made just for you.
Dive in and discover the best underwater companion for your swim adventures!
FAQs
1. What makes a fitness tracker waterproof?
A waterproof fitness tracker is made to be water-resistant and can handle getting wet from swimming or diving. It keeps working well even when underwater.
2. Can I use my Apple Watch Series 8 for swimming?
Yes, the Apple Watch Series 8 is good for swimmers because it has water-resistance and can track swim styles, depth gauge, and has an always-on display that helps you see your stats while in the pool.
3. Does Samsung have a watch that’s good for swimmers?
The Samsung Galaxy Watch 5 is great for people who like to swim. It’s built to last in water and gives you many details about your swims, such as heart rate with its photoplethysmography tech.
4. Is there a Fitbit that works well in the pool?
The Fitbit Flex is a wearable device that tracks your physical fitness while swimming, including how far you swim and what kind of strokes you do.
5. Can I listen to Spotify on my waterproof fitness tracker while I swim?
If your fitness tracker supports apps like Spotify, has Bluetooth capabilities, and pairs with devices like Galaxy Buds that are also water-resistant, then yes! But make sure all devices are safe to use in water before trying this.
6. Are there any smartwatches for divers too?
For divers who need something more than just tracking laps in a pool, dive computers like those by Garmin Forerunner give important info such as dive depth pressure at sea level which helps keep dives safe.
